bfd/

	* Makefile.am (BFD32_LIBS): Add compress.lo.
	(BFD32_LIBS_CFILES): Add compress.c.
	(BFD_H_FILES): Likewise.
	* Makefile.in: Regenerate.
	* bfd-in2.h: Regenerate.
	* config.in: Add HAVE_ZLIB_H
	* configure.in: Add test for libz and zlib.h
	* configure: Regenerate.
	* dwarf2.c (read_section): New function.
	(read_indirect_string): Call new function read_section.
	(read_abbrevs): Likewise.
	(decode_line_info): Likewise.
	(read_debug_ranges): Likewise.
	(find_line): Call new function read_section when just one
	.zdebug_info section is found, otherwise read and compress
	multiple sections.
	(_bfd_dwarf2_cleanup_debug_info): Free sec_info_ptr.
	* elf.c (_bfd_elf_make_section_from_shdr): Add zdebug prefix.
	(special_sections_z): New struct.
	(special_sections): Refer to special_sections_z.
	* elfxx-mips.c (_bfd_mips_elf_section_from_shdr): Recognize
	sections named .zdebug_*.
	(_bfd_mips_elf_fake_sections): Likewise.
	* compress.c: New file.
	(bfd_uncompress_section_contents): New function.
bfd/doc/
	* Makefile.am (BFD_H_DEP): Add ../compress.c.
	* Makefile.in: Regenerate.
binutils/
	* config.in: Add HAVE_ZLIB_H
	* configure.in: Add test for libz and zlib.h
	* configure: Regenerate.
	* dwarf.c (debug_displays): Add .zdebug_* strings.
	* dwarf.h (struct dwarf_section): Add fields uncompressed_namd
	and compressed_name.
	* objdump.c (load_debug_section): Call
	bfd_uncompress_section_contents when loading a compressed
	section.
	(dump_dwarf_section): Recognize compressed section name.
	(mach_o_dwarf_sections): Rename as
	mach_o_uncompressed_dwarf_sections.
	(mach_o_compressed_dwarf_sections): New variable.
	(generic_dwarf_section): Rename as
	generic_uncompressed_dwarf_sections.
	(generic_compressed_dwarf_sections): New variable.
	(check_mach_o_dwarf): Save and restore
	mach_o_compressed_dwarf_sections.
	* readelf.c: Add #include for config.h and zlib.h
	(process_section_headers): Recognize compressed section name.
	(uncompress_section_contents): New function.
	(load_debug_section): Call uncompress_section_contents when
	loading a compressed section.
	(display_debug_section): Recognize compressed section name.
binutils/testsuite:
	* binutils-all/objdump.exp: Add test for objdump -s on a file
	with a compressed debug section.  Add test for objdump -W on a
	file that contains a compressed debug section.
	* binutils-all/readelf.exp: Call readelf_compressed_wa_test.
	(readelf_compressed_wa_test): New function.
	* binutils-all/dw2-compressed.S: New file.
	* binutils-all/objdump.W: New file.
	* binutils-all/objdump.s: New file.
	* binutils-all/readelf.wa: New file.

1 files changed, 129 insertions, 0 deletions

diff --git a/binutils/testsuite/binutils-all/objdump.W b/binutils/testsuite/binutils-all/objdump.W
new file mode 100644
index 00000000000..18dad343a83
--- /dev/null
+++ b/binutils/testsuite/binutils-all/objdump.W
@@ -0,0 +1,129 @@
+
+tmpdir/dw2-compressed.o:     file format .*
+
+The section .debug_info contains:
+
+  Compilation Unit @ offset 0x0:
+   Length:        0x4e \(32-bit\)
+   Version:       2
+   Abbrev Offset: 0
+   Pointer Size:  4
+ <0><b>: Abbrev Number: 1 \(DW_TAG_compile_unit\)
+    < c>   DW_AT_stmt_list   : 0x0	
+    <10>   DW_AT_high_pc     : 0x8	
+    <14>   DW_AT_low_pc      : 0x4	
+    <18>   DW_AT_name        : file1.txt	
+    <22>   DW_AT_producer    : GNU C 3.3.3	
+    <2e>   DW_AT_language    : 1	\(ANSI C\)
+ <1><2f>: Abbrev Number: 2 \(DW_TAG_subprogram\)
+    <30>   DW_AT_external    : 1	
+    <31>   DW_AT_decl_file   : 1	
+    <32>   DW_AT_decl_line   : 2	
+    <33>   DW_AT_name        : func_cu1	
+    <3c>   DW_AT_type        : <0x4a>	
+    <40>   DW_AT_low_pc      : 0x4	
+    <44>   DW_AT_high_pc     : 0x8	
+    <48>   DW_AT_frame_base  : 1 byte block: 55 	\(DW_OP_reg5\)
+ <1><4a>: Abbrev Number: 3 \(DW_TAG_base_type\)
+    <4b>   DW_AT_name        : int	
+    <4f>   DW_AT_byte_size   : 4	
+    <50>   DW_AT_encoding    : 5	\(signed\)
+
+Raw dump of debug contents of section .debug_line:
+
+  Offset:                      0x0
+  Length:                      62
+  DWARF Version:               2
+  Prologue Length:             35
+  Minimum Instruction Length:  1
+  Initial value of 'is_stmt':  1
+  Line Base:                   1
+  Line Range:                  1
+  Opcode Base:                 16
+
+ Opcodes:
+  Opcode 1 has 0 args
+  Opcode 2 has 1 args
+  Opcode 3 has 1 args
+  Opcode 4 has 1 args
+  Opcode 5 has 1 args
+  Opcode 6 has 0 args
+  Opcode 7 has 0 args
+  Opcode 8 has 0 args
+  Opcode 9 has 1 args
+  Opcode 10 has 0 args
+  Opcode 11 has 0 args
+  Opcode 12 has 1 args
+  Opcode 13 has 0 args
+  Opcode 14 has 0 args
+  Opcode 15 has 0 args
+
+ The Directory Table is empty.
+
+ The File Name Table:
+  Entry	Dir	Time	Size	Name
+  1	0	0	0	file1.txt
+
+ Line Number Statements:
+  Extended opcode 2: set Address to .*
+  Advance Line by 3 to 4
+  Copy
+  Copy
+  Extended opcode 2: set Address to .*
+  Extended opcode 1: End of Sequence
+
+
+  Offset:                      0x42
+  Length:                      25
+  DWARF Version:               2
+  Prologue Length:             19
+  Minimum Instruction Length:  1
+  Initial value of 'is_stmt':  1
+  Line Base:                   -5
+  Line Range:                  14
+  Opcode Base:                 13
+
+ Opcodes:
+  Opcode 1 has 0 args
+  Opcode 2 has 1 args
+  Opcode 3 has 1 args
+  Opcode 4 has 1 args
+  Opcode 5 has 1 args
+  Opcode 6 has 0 args
+  Opcode 7 has 0 args
+  Opcode 8 has 0 args
+  Opcode 9 has 1 args
+  Opcode 10 has 0 args
+  Opcode 11 has 0 args
+  Opcode 12 has 1 args
+
+ The Directory Table is empty.
+
+ The File Name Table is empty.
+
+ Line Number Statements:
+
+Contents of the .zdebug_abbrev section:
+
+  Number TAG
+   1      DW_TAG_compile_unit    \[has children\]
+    DW_AT_stmt_list    DW_FORM_data4
+    DW_AT_high_pc      DW_FORM_addr
+    DW_AT_low_pc       DW_FORM_addr
+    DW_AT_name         DW_FORM_string
+    DW_AT_producer     DW_FORM_string
+    DW_AT_language     DW_FORM_data1
+   2      DW_TAG_subprogram    \[no children\]
+    DW_AT_external     DW_FORM_flag
+    DW_AT_decl_file    DW_FORM_data1
+    DW_AT_decl_line    DW_FORM_data1
+    DW_AT_name         DW_FORM_string
+    DW_AT_type         DW_FORM_ref4
+    DW_AT_low_pc       DW_FORM_addr
+    DW_AT_high_pc      DW_FORM_addr
+    DW_AT_frame_base   DW_FORM_block1
+   3      DW_TAG_base_type    \[no children\]
+    DW_AT_name         DW_FORM_string
+    DW_AT_byte_size    DW_FORM_data1
+    DW_AT_encoding     DW_FORM_data1
+